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EP 2 398 956 A2

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(88) Date of publication A3: 17.02.2011 (43) Date of publication: 28.12.2011 Bulletin 2011/52 (21) Application number: 10705221.9 (22) Date of filing: 05.02.2010

(51) International Patent Classification (IPC):  D06M 13/358(2006.01) D06M 16/00(2006.01) B03C 3/28(2006.01) D06M 11/83(2006.01) D06M 13/432(2006.01) B01D 39/00(2006.01) D06M 11/42(2006.01) D06M 15/13(2006.01) (86) International application number: PCT/US2010/023266 (87) International publication number: WO 2010/096285 (26.08.2010 Gazette 2010/34)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 20.02.2009 US 154026 P (71) Applicant: 3M Innovative Properties Company Saint Paul, MN 55133-3427 (US)

(72) Inventors: YLITALO, Caroline, M. Saint Paul, Minnesota 55133-3427 (US) STEPANOVA, Narina, Y. Saint Paul, Minnesota 55133-3427 (US) SEBASTIAN, John, M. Saint Paul, Minnesota 55133-3427 (US) BELGRADE, Sonja, K. Stillwater Minnesota 55082 (US) HOLM, David, R. Saint Paul, Minnesota 55133-3427 (US) LI, Fuming, B. Saint Paul, Minnesota 55133-3427 (US) (74) Representative: Vossius & Partner  Siebertstrasse 4 81675 München 81675 München (DE)